Radial head-gate.



N'. L. HALL.

RADIAL HE AD GATE.

APPLIOATION FILED JAN. 12, 1912.

Patented Aug. 27, 1912.

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- Patented Aug. 27, 1912.

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RADIAL HEAD GATE.

APPLIOATION FILED JAN. 12, 1912.

Patented Aug. 27, 1912.

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N. L. HALL.

RADIAL HEAD GATE.

APPLICATION FILED JAN..12, 1912.

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UNITED s'rA'rEs PATENT OFFIC NEWTON L. HALL, OF DENVER, COLORADO.

RADIAL HEAD-GATE;

Be it known that I, NEWTON L. HALL, a citizen of the United States,residing in the city and county of Denver and State of Colorado, havenvented certain new and useful Im rovements in Radial Head-Gates; and Ido eclare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use'the same, reference being had to theaccompanying drawings, and tothe characters of reference marked thereon,which form a part of this specification.-

My invention relates to improvements in radial head gates adapted to beemployed in taking water from a reservo r, stream or other body of waterfor irrigationor other purposes, mv object being to make it practicableto take the water from t e top or different levels of the source rat erthan from the bottom thereof.

Heretofore, so far as I am aware, radial gates could only be opened byraising them in their entirety, thus opening the gate at the bottom topermit an undernow from the source. This is objectionable forthe reasonthat solid material or debris of any kind,

which has settled or may be comparatively loose at the bottom of thesource, is carried by the underflow of water into the canal below thegate, thus partially filling the canal, and, in any event, forming anundesirable obstruction.

By virtue of my improvement, it becomes practicable to take the waterfromthe top of the source, the bottom of the source, or from anintermediate position, as may be desired, and to this endthe gate iscomposed of independent sections, which, when the gate is closed,cooperate to make a continuous device, the various sections interlockingwith each other in such a way as toform a tight structure.

.section of my improved gate construction,

taken on the line 11"of Fig, 2. Fig. 2 is a top plan view .of the same.Fig. 3 is a similar view, showing a modified form of I Specification ofLetters rateiitl Patented Aug. 2'7, 1912. Application filed January 1219 12.' Serial 80. 670,928.

' illustrating the fact that the arc of the bearing surface of thegateis struck from a different center from that in which the faces .Ofthe gate sections travel. Fig. 5 is a fragmentary detailed view shown ona larger scale than in the general views. Fig. 6 is a side elevation,partly in section, illustrating a modified form of construction. Fig. 7is a similar view, showing still another form of construction.

. The same reference characters indicate the same parts in all theviews.

. Let the numeral 5 designate the body of water adjacent a canal whichis to be supplied through a gate, which may be designated in itsentirety by the numeral 6. This gate will now be described in detail.

A shaft or axle 7 (referring more particularly to the constructiondisclosed in Figs. 1 and 2), has its extremities supported in bearings 8mounted on pedestals 9 located in cavities 10 formed in the sides 12 ofa pier 13, the two sides of the pier being gate and through which thewater is to flow from the source to the canal. In this form 'ofconstruction, the extremities of the shaft or axle-7 pass throughpartitions 15 of the pier and enter the cavities 10 in which the bearingpedestals are located. Journaled on the axle 7 is a number of arms 16,17, 18 and 19, to whose outer extremities are respectively secured gatesections 20, 21, 22 and 23. Itwill be understood, however, that agreater or less number of sections may be employed, as desired, theillustration in the drawing being only for the purpose of indicatingthat the gate is composed of a plurality of sections or leaves, the samebeing arranged one above another and coiipe'rating' to form a tightstructure to control the flow of water which is pivctally connected, asshown at 26, with angle iron members 27, suitably semay be adjusted tofit the curve 29 of the partitions 15 of the pier, when the saidsections are-in the closed position. The are 29 is struck from a center30 located at the intersection of the cross mar 31 in Fig. 4,

the said center being above the center 32 ofthe shaft 7 which is thecenter of motion of the gate sections, when the latter are moved. Thecenter of the curve or arc 29 is so arranged that the gate sections moveaway from the faces of the pier partitions 15 as the gate sections areraised, thus reducing the friction incident to the opening of the gatesections and relieving the latter from the wear which would otherwise beincident were. the construction such that the sections were in constantengagement with the adj acent pier faces during the entire openingmovement of the said sections. For this reason, it is important to makeprovision for adjusting the gate sections to cause them to fit the pierfaces which correspond with the curves or arcs 29 when the gate sectionsare in the closed position. When, however, these sections are raised,their faces must move in an arc struckfrom the center of the shaft 7which causes the faces of the said sections to move away from the curvedfaces of the pier during the opening movement of the sections. For thispurpose, the connection of the parts 24 and 25 with the angle ironmembers 27 is made reasonably loose, as illustrated in Fig. 5 of thedrawing. In other words, the pivot pins 33, forming the aforesaidconnections, pass through curved slots 34 formed in theoutwardly-projecting flange of each angle iron. These gate sections maybe raised and lowered through the instrumentality of drums 35 mounted onshafts 36 journaled in bearings 37 mounted on the outer edges of thepier 13, the shaft extremities protruding beyond the outer walls of thepier and being equipped with hand cranks 38, whereby each gate sectionmay be manually raised or lowered. This may, if desired, be accomplishedby employing two men, one to manipulate each crank of the shaft.Ordinarily, however, it will only be necessary to employone man, whowhere each shaft vis provided with two cranks, may operate the gatesection from either side of the gate, and, consequently,

from either end of the shaft.

In the form of construction shown in Figs. 1 and 2, the ropes or cables39, which 5 are connected with the respective gate sections, are locatedentirely outside of the mouth or channel 14, through which the water isto pass from the source 5, since, as

disclosed in the aforesaid figures, the drums 35 are located above thecavities 10 of the pier, allowing the ropes or cables 39 to be connectedwith their respective gate sections within the cavities 10, into whichthe respec- .tive extremities of each gate section protrude.

There should be two drums 35 fast on each shaft, all of the drums of thesaid shafts being located above the cavities 10. The extremities of eachpair of ropes or cables 39, remote from the drum on any shaft, areconnected with the gate sections, as shown at 40, or in any othersuitable manner, while the opposite extremities of the same pair ofropes or cables are connected with the drums on the shaft, which is tobe rotated in maniuplating the gate section.

From the foregoing description, the use and operation of my improvedconstruct-ionv will be readily understood. The aggregate area of thegate sections should be such as to reach to the highest level which thereservoir or other body of water will reach. It may be assumed that thedotted line 41 in Fig. 1 indicates this level. Hence, when theesection20 is in the closed position, its upperedge should reach the dotted line41,

thus making provision for confining the water within the source, when itis at its high.-

est level. This makes it practicable, if desired, to relieve thereservoir or source,-in the event that the water is rising to adangerous level, by lifting the uppermost section of the gate and thusallowing the water to gradually drain oil", and thus preventing it fromreaching a height which might result in overflowing or breaking thebanks of the reservoir or stream.

If we assume that the water is at the level indicated by the relativelyclose parallel dotted lines in Fig. 1, if it is desired to allow waterto enterthe canal through the gate, the section 21 will be raised. Thedegree to which the section may be opened may be regulated, as desired.For instance, if it is desired that only a small amount of water shallpass through the gate, the section only need be lifted an inch or two,or, in

other words, the upward movement of the section need not be sufficientto lift its lower edge above the level of the water, unless it isdesirable to draw off a quantity of water equivalent to that which willflow through the gate when the section is lifted above the water level.It will be understood, by virtue of my improved construction, that thewater which is taken out of the reservoir or source, by lifting theuppermost section,- or one or more of the upper sections, will becomparatively free from dirt or solid matter. Inother words, my improvedconstruction makes it practicable to draw off water substantially purefrom' the source, since that taken is drawn from the upper part of thesource. It is evident, however, that, if desired, the entire gate,including all the sections, may be raised so as to allow the water toflow underneath the gate. Again, and at thesame time, the upper sectionsmay be so adjusted asto allow the water to overflow into the canal,while, at the same time, the said sections may be so adjusted as topermit an underfiow, an overflow, and an intermediate flow, all at thesame timefor any one of these flows separately, as may -ice desired.Furthermore, by virture of my improved construction, as soon as any gatesection begins to rise, it moves away from the curved face of the pier,since the arc of such face is so regulated that its radius above thegate sections is greater than' the radius of any section. This isaccomplished by striking the are of the curved face of the pier adjacentwhich the gate sections move when raised on a radius havin its centerabove the axis 32 of the shaft upon which the arms of the gatesectionsare concentrically journaled.

Referring now to the construction illustrated in Fig. 3, attention iscalled to the fact that the cables or ropes 39 are connected with thegate sections between the inner surfaces of the pier members 12, whilethe drums are located above the mouth 14, through which the water flowswhen the gate is open. In this case, the walls 12 of' the pier areprovided with recesses 42 cut,

thereinto from the planes of the'normal inner surfaces of the pierwalls, where the gate is located, thus forming offset bearing faces 43which the gate sections engage when in the closed position, but whichthe faces of the gate sections leave as soon as they begin to riseduring the 'opening operaf tion. In this case, the shaft or axis of .the

gate sections is composed of two relatively short members 44, whoseouter extremities are anchored in the walls 12 of the pier.

As illustrated in Figs. 1 to 3, of the drawing, the raised section 20 ineach instance is thrown farther back than would be permissible byrotating its drum in a direction to raise the gate section. Hence, itshould be explained that this gate section may only,

assume the position which it is illustrated as occupying, by manuallypushing it back against'the abutment 45, in which event, the drums whichhave been operated in raising the section must necessarily rotateslightly in the reverse direction. The relatively narrow angularrecesses 46 formed in the pier walls, forward of the gate, are for theintroduction of-a flash board, when it is desired to cut off the waterfromthegate, as when making repairs on the latter.

By virtue of the rearwa'rdly cut portions 47 of these recesses,provision is made for pose of raising the same.

As illustrated in Figs. 1, 4, 6 and T of the drawing, the lowermost gatesection engages a seat 48, which may be composed of any suitablematerial set into the bottom 49 of the mouth through which the watermust pass to the canal.

In the form of construction shown in Figs. 1 and 2, the gate has a facewhich passes into the hollow of the pier and the face may extend into itfar enough to allow the lifting cords, ropes or cables 39 to be fastenedat each end, (see Fig. 2). As the channel below the gate drains, it canthus be seen that the cavity of the pier will accordingly not have theamount of water which is to be above the gate, and the lifting cords or.cables could be placed or replaced without the extreme inconveniencewhich is sure to be met when a head of water is above ihe gate and thecords have to be secured in the centerof the gate.

The change of the lengths of the radial arms 16 to 19, distur s to someextent the direction of pressure, whereby the resultant of pressure fromthe combined faces above the axle would tend to lift the gate, but thedifference in the length of the lowest arm from the highest arm is sosmall as not to create enough upward pressure to overcome the weight ofthe gate.

In Fig. 1 I have shown the pier walls pro- 00 videdwith grooves 50,preferably formed by applying channel irons to the ier walls. By virtueof this construction, a ash-board may be introduced above section 20, sothat in the case of extreme high water, the latter may be cut off to thefull heightof the pier walls. This flash-board is designated 51' seeFig. 6.

I In the form of construction shown in Fig. 6, the different gatesections which are designated 52 have their arms 53 mountedonvdifi'erent axles 54 and 55, this construction while practicable, isnot considered as desirable as the construction where the arms of all ofthe sections have a common axis.

Again, in the form of construction shown in Fig. 7, each of the gatesections 52 is connected with two arms 56, each arm be ng connected witha diflerent shaft or axle 57. The turn-buckles, 28, employed in Figs. 6nnd7, are substantially the same as in the other forms of construction,and therefore, need not be specifically described.

In common practice, good workmanshlp can produce a gate which will fillthe space between the piers to a workable degree, and be reasonablywater tight without any special waterproofing provision.

The sections of the gate may be lowered into a flowing canal, and serveas a pait al water check, and thereby raise the water level of the canalabove, so as to serve a' higher gate level on a branch canal.

Between the gate face and the pier wall, a heavy lubrication should beplaced to overcome friction, and also to avoid compact ice freezingbetween the two faces.

Attention is called to the factthat the turnbuckles 26, may be operatedto relieve the gate face if it should become fast in any position ofadjustment.

This gate can easily maintain a desired water level for a water wheel orturbine.

Having thus described my invention, what I claim is: t

1. A radial headgate composed of a plurality of independently operablesections arranged one above another.

2. A radial head gate composed of a pinrality of independently-movablesections.

In a radial head gate, the combination of a pier having curved faces,and a gate adjacent the pier faces and movable in an are different fromthat of the pier faces, whereby the gate faces recede from the pierfaces during the lifting operation, the face of the gate being curved inan arc to fit the curve of the pienface when the gate is closed.

A. in a radial head gate, the combination with a pier composed of wallslocated on opposite sides of the gate proper, the walls being cut awayon opposite sides to allow the gate to enter, the walls being curvedadjacent the face of the gate, and a gate having a face curved to fitthe faces of the pier walls when the gate is closed, and means forraising the gate, the latter being pivoted to swing in an arc, whosecenter is different from t-hecenter from whichthe curved faces of thewalls are struck, whereby the gate face moves away from the wall facesduring the opening movement of the gate.

5. A radial head gate composed of a plurality of cooperating sectionsarranged one above another and independently movable, each sectionhaving an'arm arranged to swing in an arc struck from a common center,but with difierent radii, the radii of the sections gradually increasingin lengthfrom the lowermost upwardly, substantially as described.

6. The combination with a pier having separated walls, each wall havinga cavity,

the inner partition of each cavity havin an opening bounded in front bya curved face, and a radial gate member extending transversely acrossthe space between the walls of the pier and whose extremities passthrough the said openings of the pier walls into the said cavities.

7. The combination with a pier having separated walls, each wall havinga cavity, the inner partition of each cavity having an opening boundedin front by a curved face, and a radial gate member extending transverseacross the space between the walls of the .er and whose extremities passthrou h ,the said openings of the ier walls into the said cavities, thearcs o the curved faces of the pier walls being struck from a differentcenter from the arc in which the radial gate members move, the latterbeing arranged to engage the wall faces when closed and to swin freefrom said faces during upward trave 8. A gate composed of curvedcooperatin independently operable sections arranged one above another,and radial arms with which the respective sections are connected,

the said arms being journaled to swing in dependently of each other.

9. A gate composed of curved cooperating independently operable sectionsarranged one above another, radial arms with which the respectivesections are connected, the said arms being journaled to swingindependently of each other, and from a coinmon center.

10. A. gate composed of curved cooperating independently operablesections arranged one above another, radial arms with which therespective sections are connected, the said arms being journaled toswing independently of each other, and from a common center, and meansfor manipulating said sections.

11. A. gate composed of curved cooperating sections arranged one aboveanother, radial arms with which the respective sections are connected,the said arms being journaled to swing independently of each other andfrom a common center, and means for manipulating said sections,comprising winding drums and flexible devices respectively connectedwith the drums and gate sections, substantially as described.

12. A gate comprising cooperating curved independently operable sectionsarranged one above another, an axle, and arms journaled on the said axleand respectively connected with the said sections.

13. A. gate comprising cooperating curved sections arranged one aboveanother, an axle, arms journaled on the said axle and respectivelyconnected with the said sections, and means for adjusting the sectionson the respective arms to cause the faces of the gate sections to occupyarcs struck from a center different from that in which the gate sectionstravel during their upward movement.

14. A gate comprising cooperating curved sections arranged one aboveanother and journaled to cause the faces of the gate sections whenclosed to occupy arcs struck from a center different from that in whichthe gate sections travel during their upward movement.

'15. A radial head-gate composed of a plurality of independently movablesections said gate by moving the sections away from 10 mounted to swingon a common axis. the bed of the stream or other body of Water,

16. A radial headgate composed of a plusubstantially as described.rality of sections arranged to y be moved In testimony whereof I aflixmy signature away from the bed of the stream or other in presence of twoWitnesses. body of water, for opening purposes, sub- NEWTON L. HALL.stantially as described. Witnesses: I

17. A radial headgatecomposed of a plu- A. J. OBRIEN,

rality 0t sections and means for opening A. EBERT OBRIEN.

